<!DOCTYPE html>
<html lang="zh-CN">

<head>
    <meta charset="UTF-8">
    <title>选择器插件</title>
    <link rel="stylesheet" href="styles.css">
    <style>
        body {
            min-width: 200px;
            padding: 16px;
            font-size: 15px;
        }
    </style>
</head>

<body>
    <h3>鼠标移入选择器</h3>
    <button id="activate-btn">进入选择器模式</button>
    <script src="popup.js"></script>
</body>

</html>